The students in Sabrina's school ate breakfast and lunch at school. The teachers wanted students to have 1 meals. They had an idea: students could 2 food in the school's greenhouse for themselves or the neighborhood.
In Sabrina's hometown, people started to grow 3 and fish together hundreds of years ago. The fish poop (粪便) in the water help grow the plants and plants help clean the water 4 .
Sabrina and her classmates 5 to use this way to help grow food. They 6 a team. With the help of teachers, the team workers did a lot. Sam tested how much fish ate in water at different temperatures. Santiago and Amanda helped raise chickens for 7 .
Sabrina and the other two students helped keep everything in the greenhouse work well.
When the students have raised 8 food, it's time for Market Day. Vegetables are provided for the neighbors for free. Eggs and fish are sold to raise 9 for seeds (种子), fish food and chicken food.
"We put the market on the playground," John says 10 . "Each of us wears a team suit with our school's name on it." "We can plant food and have fun while we're doing something important," says Blanka.